Mad Chair

Our warranty is valid for 2 years from the date of purchase and covers all manufacturing defects. The warranty period enters into force from the date printed on your receipt or sales slip. You may be asked to present proof of purchase when requesting service. The warranty is non-transferable and is valid only for the original purchaser. It covers repair or replacement of unusable or defective parts free of charge during the warranty period after inspection and acceptance by Poliform or its agent. Natural variations in the colour of the wood, changes in colour under ambient or artificial light, slight variations in dimensions owing to high humidity or dry conditions and the grain of wood, knots or other natural characteristics of wood products are not covered by the warranty. As to suede and leather, occasional natural marks, wrinkles, changes in brightness and tone, specks and slight imperfections folds due to extension after regular use, are not considered defects but are the distinctive traits of natural and authentic products. In some cases (aged-looking leather and nubuck leather, above all with light colours), these features are especially marked, as the kind of tanning for these leathers tends to point out the pureness of the product and not to cover it with painting or pressure print. Some types of fabric show features due to the composition and the kind of manufacturing that aren’t to be considered as defects.

For example: “staple” or “streaked” and “crumpled effect” for linen “spotted effect” or “curl” , the “light/dark effect” and the “imprint effect” for velvets and chenille. In fabrics, suedes or leather, each production lot can present slight variations in colour as compared to samples or products produced in the past. The warranty excludes damage resulting from careless or incorrect furniture installation, potential damage from accidents such as that resulting from a fall, impact, natural disaster, fire and, in any case, all defects that cannot be attributed to defects in the manufacture of the product. Moreover, the warranty is not valid in the event that our products are disassembled, modified or repaired by anyone other than authorised Poliform personnel. Damage due to poor upkeep or improper use of the product are not considered defects of manufacture. You will find useful recommendations in the instruction booklet regarding the use and care of your product. If you have any doubts or require further information, consult the Poliform reseller where your product was purchased. For any situation not expressly covered by this warranty. Legal provisions shall apply.

Poliform uses Class EPF-S E 0.5, wood-based panels, the most reliable in conforming to EU standards EN 120 and EN 717-2 and in line with the limits established by the American regulation CARB Phase 2, with respect to formaldehyde release. With respect to varnish, Poliform exclusively uses polyurethane coatings free of heavy metals and volatile organic compounds (VOC) belonging to the various classes within table A1 of the Italian Ministerial Decree of 12 july 1990 and/or Classes i and ii within table D of the Italian Ministerial Decree of 12 july 1990.

A silvery, highly ductile metal. Its chief properties are resistance to corrosion, tensile strength and it is light weight. These properties are ideal for manufacturing durable yet lightweight frame components. Raw aluminum can be worked using several different processing techniques such as fusion, forging or pressing.

Panels of polyesterized chipboard on the back and then lacquered on both sides with polyurethane polymer-based paint having a high molecular weight. The panels are dimensionally stable.

Subcortical tree trunk sections nearest the darker innermost annual rings, also known as duramen. Solid wood is considered to be high-quality, genuine natural wood in contrast to wood panels made from wood particles or multilaminates.

An engineered wood-based product composed of wood fibres or fascicles of wood fibre submitted to processing by a thermomechanical defibrator under high temperature and pressure. The fibres are held together with hardening synthetic resin.

Wood-based panels made from wood particles (shavings, wood chips, etc.). The wood particles are held together with hardening synthetic resin and then heat pressurised. Particle board panels use an assortment of less costly wood which is generally the by-product of other processes: this is why this type of product is of interest from an ecological standpoint.

Thin slices of wood between 3 and 0.30 Millimetres. Peeling derives its meaning from the fact that the tree trunk is peeled using a lathe instead of a saw. The trunk is sliced lengthwise. The slices are joined together then glued and moulded on less costly wood or raw panels of any kind (multilaminates, particle board, waferboard, plywood, hollow core board). The use of wood veneer allows the manufacture of wood products with greater durability, more resistance to woodworms, greater consistency and more attention to visible parts. The use of wood veneer also satisfies today’s need for a more ecology-conscious application of wood resources.

Filling composed of the plumage of water birds, especially geese. Down is an excellent thermal insulator, allowing the body to breathe naturally, absorbing moisture and allowing it to evaporate slowly, ensuring an ideal microclimate for the body. Down is a hypoallergenic material: dust mites, the main cause of allergies, avoid down and prefer wool and cotton. It can withstand pressure equal to 80,000 times its weight and return to its original shape.

Imbottitura composta da parte del piumaggio degli uccelli acquatici. Il piumino ha la forma di un vero e proprio fiocco, costituito da un nucleo centrale (calamo) da cui originano numerose barbe; è la parte più nobile del piumaggio, nasce sotto le ali, sul ventre e sotto il collo ed assolve funzioni di protezione termica. Il piumino assicura un’eccezionale coibenza termica unita ad una grande leggerezza: per esempio, bastano 5-6 gr. di piumino per riempire un volume di 1 decimetro cubo, mentre la lana ed il poliestere necessitano di un peso 2 o 3 volte maggiore. Da un punto di vista fisico, il contenimento del calore dipende da un buon isolamento dall’esterno che avviene principalmente attraverso l’aria ed in secondo luogo attraverso il materiale interno utilizzato. I piumini sono coibenti naturali per eccellenza, perché hanno la capacità di assorbire e trattenere, sotto forma di innumerevoli camere, grossi volumi d’aria. Il piumino inoltre offre caratteristiche elevate di resilienza, comprimibilità e igroscopicità, assorbendo l’umidità e cedendola all’esterno con notevoli vantaggi fisiologici per il corpo umano.

The process is very similar to that of molded polyurethane, but by using special molds developed by us, it is possible to obtain a leather-covered product during the molding process.

The process is the same of the moulded polyurethane but, by using particular moulds developed by Poliform, the piece is covered with leather directly during the foaming process.

Filling composed of the fine feathers of acquatic birds, particuarly geese. Feathers have excellent thermal properties and allow the body to perspire normally, absorb humidity and allow it to evaporate gradually, thus creating the ideal microclimate for the body. Feathers are a material with natural anti-allergen properties: the dust mite, the principal agent for the spread of allergens, prefers wool and cotton to feathers. Feathers can withstand pressure up to 80.000 times its weight and return easily to its original shape.

Filling composed of the fine feathers of acquatic birds. Down has the form of a veritable floccule having a central nucleus (the calamus) from which the quill is formed. Down, the finest part of plumage, provides thermal insulation and is found under the wings, on the breast and around the neck. Down provides phenomenal heat insulating properties and is extremely lightweight. As an example, 5-6 grams of down are enough to fill a volume of 1 cubic decimetre, while wool and polyester require 2 to 3 times that weight. From a physical point of view, heat retention depends on good insulation from the outside, provided first by air and second by interior fill material used. Down is a superior naturally occurring insulator because it has the capacity to absorb and to retain large volumes of air in tiny chambers. Down offers excellent resiliency, displacement and hydroscopic properties, absorbing humidity and releasing it to the outside with significant physiological advantages for the human body.

A plant fiber obtained from the stem of Cannabis sativa. Similar to linen in appearance and feel, hemp is the most moisture-resistant natural fabric.

A plant fiber obtained from the stem of Cannabis sativa. Similar to linen in appearance and feel, hemp is the most moisture-resistant natural fabric.

A plant fibre derived from the boll of the plant, which holds the seed of the species gossypium. Cotton fibre has no electrical conductivity, does not mat, is highly hydroscopic, does not irritate the skin, is anti-allergenic and may be ironed at high temperature. After linen and wool, cotton is one of the world’s oldest textile fibres. The length of the fibre determines the quality: the longer the fibre, the more lustrous, resistant and valuable it is.

A plant fibre derived from the stalk of cannabis sativa similar to linen in feel, it is the natural fibre that is most resistant to humidity.

A plant fibre derived from the bark of the genus corchorus. It is highly hydroscopic and the fibre is coarse and strong. The threads that are derived from the plant are coarse, stiff and very strong.

Velvet is a fabric whose cut threads are very evenly distributed, with a short dense pile giving it its distinctive feel. Velvet is woven on a special loom that weaves two pieces of velvet at the same time. The two pieces are then cut apart and the two lengths of fabric are wound on separate take-up rolls. Velvet can be made from many different kinds of fibres but silk and cotton are preferred.

A natural animal protein fibre derived from the cocoons of the mulberry silkworm (bombyx mori). Under the microscope, silk fibre is uniform, very similar to synthetic fibres. One of the specific properties of silk is the length of the filament: this can reach lengths of up to 700-800 meters. This makes it the longest fibre derived from an animal. There are four categories of silk textiles: taffeta, twill, satin and jacquard. Silk is the most splendid, softest and finest of natural fibres–cool in summer and warm in winter.

A textile can contain two or more types of fibres: for example, cotton and wool, wool and acrylic fibres, etc. These blended fabrics have varying characteristics depending on the fibres used and their proportions. Generally speaking, the blending of fibres allows the textile to retain the main properties of the fibres that comprise it. For example, a blend of cotton and synthetic fibres increases resistance to wrinkling.

These artificial fibres are derived by processing cellulose from various naturally occurring plants (the same plants that produce plant fibres), transforming and dissolving it using solvents and then forcing it through spinnerets to form a continuous thread or a floccule. This family of fibres includes: modal®, acetate, cupro, lyocell, and viscose. Synthetic chemical fibres are derived from organic substances that are blended then polymerised to form long molecular chains (macromolecules) that can be spun into continuous thread or floccules (discontinuous fibre). This family of fibres includes: acrylic, modacrylic, polyamide, polyester, polypropylene and polyurethane.

Regenerated fibre, obtained from wood chips and cotton spinning waste. It is extruded to form a continuous thread or floccule (also known as rayon). It has properties very similar to silk and, like most plant fibres, it is comfortable, durable (if kept dry) and is highly absorbent. It is used in blends with other natural or synthetic fibres.

A synthetic fibre that derives from a macromolecule composed of at least 50% acrylonitrile and is generally available in floccules. It is highly flame retardant and feels much like acrylic fibre to the touch. Moreover, it is resilient, shape retentive, fade and wash resistant, has a soft hand, is durable and dyes easily to bright shades, is chemical-resistant, easy to care for, insulating and non-toxic.

A synthentic fibre derived from a linear macromolecule that is a long-chain synthetic polyamide in which at least 85% of the linkages are attached directly to two aliphatic groups or rings. It can be used as a continuous thread or in floccules. The fibres are exceptionally strong, shape-retaining (excellent elasticity) and abrasion-resistant. It is easy to care for (washes, dries, does not require ironing), can be easily coloured or dyed and is wrinkle-resistant.

(Polyethylene terephthalate), a synthetic fibre derived from macromolecules composed of polyesters and is available in floccules or as smooth or volumised thread. Trevira® is one of the trade names under which it is sold. It is long-wearing, easy to care for and resists fading, humidity and microorganisms.

Hide is a protein material derived from the bovines and skins of cattle. Processing is referred to as tanning and consists of eliminating the outermost layer of skin and connective tissue (hypodermis). The most important layer is the dermis, consisting of fibrous fascicles of connective and elastic tissue. The upper portion of the dermis, called “grain”, is considered to be the highest grade of hide, called “full grain”.

Leather is a protein fabric derived from cattle and submitted to a tanning process. It is thinner and lighter than hide. General considerations. We give you some information that will help you to understand the characteristics of leather and hide listed below. The leather derives from the epidermis of the animals that is constituted by various layers and originally has a thickness of around 1 cm. Quality. When speaking of “full grain leather”, we consider the most superficial layer of the epidermis that maintains the natural characteristics of the grain, veneer and softness (more or less scarred). The dimension of the grain does not determine the quality of the leather, but it derives from aesthetical choices. In the case of more economic leathers, the inner layers are used and are manufactured to reproduce the natural characteristics of the leather (grinding and pressure moulding of the grain). Origin. The European origin of the leather is without doubt to prefer to exotic or overseas origins (which present more defectiveness due to scars and insect bites because of the breeding in the wild). Mineral tanning. The tanning, procedure that wants to preserve the leather from the natural organic decadence, is also used to exalt the softness, the colour, and the brightness of it. It is generally realized with chromium salts; only in the case of high quality leathers a vegetable tanning is realized in order to get the most natural effect. Dyeing. The dye that permits to get all the different colours starting from the natural one is done by immersion of the leathers in dye drums: we always use aniline, through dyeing the whole thickness (to be preferred to the superficial dyeing). Drying. The drying, generally made on frames in ovens, is done naturally at air for the finest leathers. Grain. The natural grain (not embossed) and the absence of grindings (a sort of smoothing) show the use of full-grain leather of a quality that does not need correction and retouch operations. Refinishing. The best final refinishing that then determines the aspect of the leather is the one finished with aniline, with a more natural aspect but also more delicate. The refinishing with polyurethane resins, instead guarantees great uniformity and resistance in the use. Thickness and dimension. A greater thickness determines a better leather and a greater dimension are to be preferred, as you have less waste in use.

European origin
Bovine leather
Chromium-salt tanning
Trough dyeing
Vacuum drying
Embossed grain
Grinded
Refinished with polyurethane resin
Thickness 1,0/1,2 mm
Average dimension 4,5/5,0 sqm

European origin
Bovine leather
Chromium-salt tanning
Trough dyeing
Thin natural grain
No grindings
Refinished with polyurethane resin
Thickness 1,0/1,2 mm
Average dimension 5,00/5,50 sqm

European origin
Bovine leather
Chromium-salt tanning
Through dyeing
Thin natural grain
Slightly corrected grain
Refinishing with pigments
Thickness 1,3/1,5 mm
Average dimension 5,00/5,50 sqm

European origin
Bovine leather
Full-grain ox leather
Chromium-salt tanning and vegetable re-tanning
Aniline drum dyed with trough dyeing
Natural drying
Natural grain
No grinding
Refinishing with aniline
Thickness 1,3/1,4 mm
Average dimension 5,00/5,50 sqm